65453240172 has 24 divisors (see below), whose sum is σ = 156449209392. Its totient is φ = 21285606400.

The previous prime is 65453240161. The next prime is 65453240179. The reversal of 65453240172 is 27104235456.

It is a self number, because there is not a number n which added to its sum of digits gives 65453240172.

It is not an unprimeable number, because it can be changed into a prime (65453240179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66517029 + ... + 66518012.

It is an arithmetic number, because the mean of its divisors is an integer number (6518717058).

Almost surely, 2^65453240172 is an apocalyptic number.

It is an amenable number.

65453240172 is an abundant number, since it is smaller than the sum of its proper divisors (90995969220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65453240172 is a wasteful number, since it uses less digits than its factorization.

65453240172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133035089 (or 133035087 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 65453240172 in words is "sixty-five billion, four hundred fifty-three million, two hundred forty thousand, one hundred seventy-two".